Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane

1,4,9-Trichlorodibenzofuran, 1.2ml x 50ug/ml, toluene

trans-Androsterone

2,2',4,4'-Tetrabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-20, Cas.no. 5436-43-1